Home / 207,906-321,795

Finding the Third Proportional to 207,906 and 321,795

Calculator

Solution

The third proportional to 207,906 and 321,795 is: 498,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,906 : 321,795 = 321,795 : x
  2. Step 2: Convert to fraction form
    207,906/321,795 = 321,795/x
  3. Step 3: Cross multiply
    207,906x = 321,795 × 321,795
  4. Step 4: Simplify right side
    207,906x = 103,552,022,025
  5. Step 5: Solve for x
    x = 103,552,022,025/207,906
  6. Step 6: Final answer
    x = 498,071.35

Related Problems

Find third proportional to 103,953 and 160,897.50
Half scale
Find third proportional to 415,812 and 643,590
Double scale
Find third proportional to 207,908 and 321,798
Similar ratio
Find third proportional to 311,859 and 482,692.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.